Error: "500 - Internal server error" in Sage 100 ERP

We have reports of users receiving the following error message in Sage 100 ERP: "500 - Internal server error." (KB 61802)

This message occurs when clicking the Map button in Customer Maintenance or Inquiry. (KB 58673)

This message also occurs when clicking the Tracking button in Accounts Receivable Invoice History Inquiry. (KB 58674)

Sage is currently reviewing this issue and will update users via this thread as well as our @sage100erpcs Twitter page.